<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<style type="text/css">
	#zindexDiv{
		z-index:2;
	}
	#imgDiv{
		position: absolute;
		top: 10px;
		z-index:-1;
	}
</style>
<title>z-index test</title>
</head>
<body>
	<div id="zindexDiv">
		困难学生
	</div>
	<div id="imgDiv"><img src="/recources/images/monitor_map.png"></img></div>
</body>
</html>